Siemens SIMEAS R-PMU, Manual, Page: 74 / 296

7
7.2 Fault Recorders
74
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
7.2.1.2.4 Cross Trigger
If the cross trigger has been activated for the Transient Analog Recorder, recording by the
Transient Analog Recorder will be started as soon as the Transient Phasor Recorder has been
triggered. In this case, the prefault time corresponds to the recording time that has been
parameterized for the Transient Analog Recorder. An extension (retriggering) of the TAR fault
record can only be initiated by the Transient Analog Recorder and not by another cross trigger
of the Transient Phasor Recorder.
7.2.1.2.5 Manual Triggers
There are several options for triggering the Transient Analog Recorder manually. The duration
of the manually triggered fault record depends on the values parameterized under
Manual
recording time
and
Prefault time
. If a manual trigger is started, the SIMEAS R-PMU does not
send any network signal.
If a manual trigger starts a record, the record will be restarted if it is retriggered due to a
disturbance. Since the disturbance recording time is set independently of the manual trigger
recording time, this may change the total recording time.
Manual trigger on the control panel
Actuating the "Manual trigger" button on the control panel starts a fault recording.
Manual trigger via OSCOP P
Alternatively, the manual trigger can be started with the OSCOP P evaluation and
parameterization software. For detailed information on this topic, see the OSCOP P manual, the
chapter on
Transmitting data
.
7.2.1.2.6 External Trigger
With the Transient Analog Recorder, the fault record can be started externally via a binary input
at the central processing unit of the SIMEAS R-PMU. Recording is continued as long as the
external control signal is provided. The recording time is limited to a maximum of 30 s plus 1 s
prefault time. If the external trigger is set, SIMEAS R-PMU sends no network trigger signal.
If an external trigger starts a fault record, the record will be restarted if it is retriggered due to a
disturbance. Since the disturbance recording time is different from the external trigger duration,
this may change the total recording time.